What does it mean to have a CLEAR FOCAL CENTER POINT? How do you prevent blurriness at 100%? Thanks!?

Question

Where? I stock photo

Fhotoace there are Billions of people on this Earth, I can Guarantee not everyone knows, or gives a care to who you are!

Answer 1

Bethany, I think fhotoace is just giving you some background information so that you won't think he is an expert in the lollipop making section who has no business answering your question. Most people, in fact, do appreciate this information in their answers - especially if the answerer says that they don't understand your question. Most people do care that he is our section leader with the highest number of "Best Answers," even though you have dropped in having no idea who he is.

If this term comes from iStockphoto, it is probably from some tutorial about submitting images. I am GUESSING that they are suggesting that marketable images have a clear idea to convey. The "central point" of the image is like the theme of a novel. I don't think that this term is used to describe composition or anything. I searched iStockphoto for the term and their search function did not give me a single hit on that exact string.

Do you mean, "How do you prevent blurriness 100% of the time?" or, " How do you prevent blurriness at 100% (1:1) magnification?" The question may be clear to you, but there are so many ways of defining, creating or preventing bluriness that you probably won't get a 100% helpful answer. Maybe you can describe the situation that you are concerned with so it would be more clear to us.

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I received a message from Bethany about the source of the term CLEAR FOCAL CENTER POINT and now I understand the question. It's actually really funny now... iStockphoto themselves did not make up or publish the term. There is a message thread in the user forum about a photo that was rejected because there is "no center of focal point." The person whose picture was rejected started the thread and made up the term "clear center focal point" as a subject line. Seeing the picture, I can understand two ways of interpreting the term. One relates to whether or not any of the image is in focus and the other relates to whether or not there is any point of interest in the photo. There are half a dozen messages in the thread and the conclusion seemed to be that nobody in the thread knew for sure what it meant, either.

We should be flattered that Bethany came here for clarification.

I'm still chuckling.

Answer 2

I'm with Ace and Antoni on this. I've been shooting something like 40 years and havn't seen that term. I can guess at 3 things it might refer to:

1. There are focusing screens where the center is a clear spot. The rest of the screen is matte for focusing and the center spot can be surrounded by a micro prism collar. Most often, the clear spot contains a cross hair and if you move your eye in the viewfinder and the cross hair remains exactly where it was on the subject, your focus is exact. These are very specialized screens used for things like mircophotography and astrophotography.

2. It could be a term applied to composition where lines, color, etc., work to together to provide a 'clear focal center (as in attention of viewer) point'. In other words, the visual center of interest. This one feels more likely than the other two guesses.

3. There are filters, like diffusion filters, that provide special effects and have a clear center point. It may be a reference to something like that.

Those are my best WAGs.

I have no idea by what you mean by preventing blurriness at 100%. Off the top of my head, I think it would be the same way you usually prevent blury images. Focus carefully.

Digital images are routinely sharpened because they tend to be soft, but that is a contrast manipulation of edges and you aren't really sharpening it.

Vance

Answer 3

I'm no expert but a clear focal center point probably means that the center of your photo is in focus. What do you mean by "blurriness at 100%"?

Answer 4

yeah im with Photoace, Im younger and less experienced than him. However i also have never heard of the terms you use. The thumbdowners need to understand that photography requires learning and being jealous and thumb downing an answer like Mr Aces shows they bring nothing of value here - where are their answers?

CLEAR FOCAL CENTER POINT what are these terms?

what do they mean: to me someone trying to sound knowledgable but making up terms dont impress people like me.

to prevent "blurryness" use a tripod, dont exceed the shutter speed/ mm rule. And as said above studying photography would be helpful

Edit: your profile says you want to learn photography, it will be easier if you listen to the likes of Photoace and dont allienate yourself from those who will now think twice before sharing info with you.

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